{"product_id":"heavy-duty-rubber-wheel-chock-300mm-400mm-40-tonne-capacity","title":"Heavy Duty Rubber Wheel Chock - 300mm \u0026 400mm, 40 Tonne Capacity","description":"\u003cp\u003eA vehicle that shifts during loading, unloading or maintenance is one of the most common causes of serious injury on a yard or loading bay, and a \u003cstrong\u003eheavy duty rubber wheel chock\u003c\/strong\u003e is the simplest way to stop it happening. Wedged against a tyre, it holds HGVs, vans, trailers, diggers and other plant securely on both flat ground and slopes, giving your team a reliable last line of defence against unexpected roll-away.\u003c\/p\u003e\n\n\u003ch3\u003eWhy it works\u003c\/h3\u003e\n\u003cp\u003eThe chock is moulded from a single block of solid rubber rather than a hollow shell, so it keeps its shape under sustained load instead of compressing or splitting. A ribbed tread runs across the full contact face, biting into the tyre tread to resist slipping even when the ground is wet, oily or frosty. Because the body is solid rubber rather than steel or hard plastic, it will not mark tyres, will not rust, and will not crack in cold weather the way some lower-cost chocks do after a winter outdoors. A drilled hole through the wedge accepts a rope or chain, so the chock can be tethered to the vehicle or a fixed point and never gets left behind on site.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid rubber build\u003c\/strong\u003e – resists compression and splitting under repeated heavy loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRibbed grip face\u003c\/strong\u003e – maintains traction on wet, icy or oily surfaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRope hole fitted\u003c\/strong\u003e – tether it to the vehicle so it is never lost or left behind\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeatherproof rubber\u003c\/strong\u003e – will not rust, rot or crack outdoors year-round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo size options\u003c\/strong\u003e – matched to tyre diameter for vans, HGVs, diggers and dumpers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWheel chocks like this one are specified wherever vehicles stand unattended with an engine off and a handbrake that cannot be fully relied on: loading bays, distribution yards, vehicle workshops, construction sites and plant depots. They are equally at home under a parked HGV trailer awaiting a tractor unit, a van on a sloped forecourt, or a digger left overnight on site.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eSolid moulded rubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSizes available\u003c\/td\u003e\n\u003ctd\u003e300mm and 400mm length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall dimensions\u003c\/td\u003e\n\u003ctd\u003e300 x 300 x 245mm (300mm) \/ 400 x 300 x 245mm (400mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e16kg (300mm) \/ 22kg (400mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum load rating\u003c\/td\u003e\n\u003ctd\u003eUp to 40 tonnes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface finish\u003c\/td\u003e\n\u003ctd\u003eRibbed grip tread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFixing\u003c\/td\u003e\n\u003ctd\u003e16mm drilled hole for rope or chain tether\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eChoosing the right size:\u003c\/strong\u003e match the chock to the tyre it will be holding rather than to the vehicle type alone, since a chock that is too small can be driven over rather than stopped by. As a working rule, chock height should be at least a quarter of the tyre's overall diameter. The 300mm chock suits vans, cars, small trailers and light plant with a tyre diameter up to roughly 900mm. The 400mm chock is sized for HGVs, tractor units, dumpers and diggers with larger tyres, and gives a greater margin on inclines. If you are chocking a laden HGV on a slope, fit chocks to more than one wheel rather than relying on a single chock.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation, use and care\u003c\/h3\u003e\n\u003cp\u003ePosition the chock hard against the tyre tread on the downhill side of the wheel, so that any rolling motion drives the tyre further onto the chock rather than away from it. On a slope, fit a chock to the downhill side of at least one wheel on each axle; two matched wheels is safer still. Push the vehicle gently onto the chock to seat it before leaving the vehicle unattended. Store chocks away from fuel, oil and direct sunlight when not in use, and inspect the rubber periodically for cracking, tearing or a permanent compression set, replacing the chock if any of these are found.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow many chocks do I need per vehicle?\u003c\/strong\u003e\u003cbr\u003eOne chock per wheel is the minimum on level ground; on a slope, chock at least one wheel on each axle, or both wheels of the same axle for extra security.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this chock damage my tyres?\u003c\/strong\u003e\u003cbr\u003eNo. The solid rubber body and ribbed face are designed to grip the tyre without marking or damaging the rubber, unlike some steel or hard plastic alternatives.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used on gravel or uneven ground?\u003c\/strong\u003e\u003cbr\u003eIt performs best on hard, level surfaces such as concrete or tarmac. On loose or uneven ground the chock may not sit flush, so use a flat base pad underneath or add extra restraints on steep or unstable surfaces.\u003c\/p\u003e\n\n\u003ch3\u003eOrdering and delivery\u003c\/h3\u003e\n\u003cp\u003eBoth sizes are stocked in the UK for fast dispatch. See the Product specifications and Installation instructions sections below this listing for full fitting guidance before you order, and get in touch if you are unsure which size suits your vehicle fleet.\u003c\/p\u003e","brand":"Stair Nosings UK","offers":[{"title":"300mm","offer_id":48184944984222,"sku":"SNUK-WHLCHK-300","price":180.9,"currency_code":"GBP","in_stock":true},{"title":"400mm","offer_id":48184945016990,"sku":"SNUK-WHLCHK-400","price":237.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/5274\/2046\/files\/wheel-chock-in-situ.png?v=1787470330","url":"https:\/\/stairnosingsuk.co.uk\/products\/heavy-duty-rubber-wheel-chock-300mm-400mm-40-tonne-capacity","provider":"Stair Nosings UK","version":"1.0","type":"link"}